Mixing-machine.



A. A. MERRILL.

MIXING MAGHINE.

APPLICATION rum) APE.12, 1913.

1,102,348. Patented July 7, 1914,

3 SHEETS-SHEET 1.

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THE NORRIS PETERS CO., PHOTO-LITHQ, WASHINGTON, D C

A. A. MERRILL.

MIXING MACHINE. unwu'xon FILED APR. 12, 1913.

W W m M M m 7H l W y w 1 mm E M m Q N N m P vVi/tumw THE NORRIS PETERS00.. PHOTO-L|'1H0.. WliSHINGTON, D. C

A. A. MERRILL.

MIXING MACHINE.

APPLICATION FILED APR. 12, 1013 1,102,348. Patented July 7, 1914.

3 SHEETQ-BHEET 3.

THE NORRIS PETERS C0,, PHO'I'O-LITHU. WASHINGTONv D, C,

ALVA A. MERRILL, OF SOUTH DAYTON, NEW YORK.

MIXING-MACHINE.

Specification of Letters Patent.

Patented July *7, 1 91 4.

Application filed April 12, 1913. Serial No. 760,703.

To all whom it may concern:

Be it known that I, ALVA A. Mnnnrnn, citizen of the United States,residing at South Dayton, in the county of Cattaraugus and State of NewYork,have invented certain new and useful Improvements in Mixing l\.lachines, of which the following is a specification, reference being badto the accompanying drawings.

This invention comprehends certain and useful improvements in mixingmachines and relates more specifically to that class of devicesespecially adapted for mixing concrete and the like.

An object of the invention is to provide a machine of this characterhaving a rotary mixing cylinder mounted upon anti-friction rollerscarried in a supporting frame, and anvil means for feeding the materialto the rotary cylinder and also means for rotating said cylinder.

Another object is to provide a feed hopper having a movable partitionadapted to be secured in various positions for varying the relativeproportions of the materials tobe mixed, said partition serving toseparate the materials while in the hopper.

Another object is to generally improve and simplify the construction andoperation of various parts of the device and thereby reduce the cost ofthe mixer and increase the commercial value of the same.

lVith the above and other objects in view, this invention consists inthe novel features of construction, combination and arrangement of partsas will be hereinafter more fully described, claimed and illustrated inthe accompanying drawings, in which Figure 1, is a side elevation of mycomplete mixer. Fig. 2, is a top plan view of the same. Fig. 3, is avertical cross sectional view on the line 33 of Fig. 1, and looking inthe direction indicated by the arrow. Fig. 4, is a fragmentaryperspective view of the hopper, showing t e movable partition and meansfor securing the same in adjusted position. Fi 5, is a view similar toFig. 3, on the line 5-5 of Fig. 1 and looking in the direction indicatedby the arrow, the cylinder rotating means being removed.

Referring more specifically to the draw.- ings in which similarreference characters designate corresponding parts throughout theseveral views, 1 designates the rotary cylinder which may be formed ofone continuous piece or of longitudinal strips suitably connected by theencircling track members 2 spaced from the opposite ends of the cylinderand adapted to travel on the antifriction rollers 3 loosely mounted uponthe spaced longitudinal shafts 4 carried in suitable brackets 5 mountedon the corner standards G of the supporting frame within which thecylinder 1 is adapted to rotate. The corner standards 6 are secured attheir lower end to the lower longitudinal frame members 7 which are inturn connected by the transverse lower frame members 8 and the standards6 are suitably connected and braced above the frame members 7 and 8 bythe upper longitudinal and transverse frame members 9 and 10respectively.

Encircling the central portion of the rotary cylinder 1 is a ring 11having the sprocket teeth 12 formed upon its upper face for engagementwith the sprocket chain 13 which is also engaged around the smallsprocket wheel 14: on the longitudinal counter shaft 15 mounted in theupper end of the standards 6 of one side of the framework to rotate thecylinder at a lower rate of speed upon rotation of said counter shaft.The counter shaft 15 is in turn driven by a belt 16 engaged around thedrive pulley 17 and connected with any suitable source of power as shownat 16. The idle pulley 18 is also carried by the counter shaft 15adjacent the drive pulley 17 to receive the belt 16 when it is desiredto discontinue the rotation of the counter shaft 15 without stoppingtheengine or other means by which the belt 16 is operated.

The counter shaft 15 carries the beveled gear 19 upon one end andengaged with this engaged around a sprocket wheel 25 upon:

the lower elevator shaft 26. The lower ele- (vator shaft 26 is mountedin suitable brackets 27 carried b the extended forward ends of thelongitudinal frame members 7 and 8. The upper elevator shaft 28 isconsiderably shorter than the lower elevator shaft 26 and is mounted inthe upper ends of the inclined supporting bars within the elevatedforward end of the cylinder 1, it being understood that the cylinder 1is positioned at an incline by elevating the forward end of thesupporting framework to cause the materials being mixed within thecylinder to move toward the rear end of the cylinder as the lat errotates. The lower endsvofthe supporting bars 29 are secured to theextended forward ends of the longitudinal frame members 7 and S and thelower elevator shaft 26 extends through said lower ends of thesupporting bars. The supporting bars 29 are suitably braced adjacenttheir upper ends by means of the bracing standards 30 secured at theirupper ends to the supporting bars 29 and at their lower ends to thelongitudinal frame members 7 and 3.

The elevator chains 31 are engaged around the sprocket wheels 32 and 33provided therefor upon the elevator shafts 26 and 28 and the chains aresuitably connected by the usual connecting strips 34. The feed hopper ismounted upon the connecting strips 34 between the elevator chains 31 tofeed the materials to be mixed to the elevated forward end of the rotarycylinder.

The hopper 35 is provided in its opposite ends with a series of verticalgrooves 36 formed in the inner faces of said ends to receive thevertical partition 37 whereby the partition may be adjusted transverselyof the hopper to vary the proportions of the cement and sand or othermaterials to be mixed, it being understood that the materials are placedin the hopper to opposite sides of the partition 37. Thus it will be Hseen that should the partition 37 be placed in the proper grooves 36 todivide the hopper in equal compartments and each compartment iilledwitha different material, the hopper will deliver equal quantities of thetwo materials to the cylinder 1. The partition may be shifted to oneside, however, to vary the relative proportions of the materials, asdesired, as will be readily apparent. As the rear or lower end of thecylinder 1 is also open and properly supported above the ground or othersurface upon which the framework is positioned, a wheelbarrow or anysuitable receptacle may be readily positioned beneath said cylinder endto receive the mixture as the same is delivered from this end of thecylinder, as will be readily understood.

The water supply pipe 38 extends longitudinally through the rotarycylinder 1 and in the upper portion of the latter and has the T outlets39 about one-third the distance from the elevated forward end of thecylinder to the rear lower end of said cylinder, and by means of which,water is supplied to the materials within the cylinder to assist invmixing the same. The pipe 38 is connected at its forward end to the mainwater supply pipe 40 which is provided with a valve 11 for cont-rollingthe supply of water from the main pipe 4:0 to the water pipe 38. Theopposite end of the pipe 38 is closed, as shown at 42 and this closedend extends outwardly of the rear end of the cylinder 1 and is supportedin position by means of the supporting bracket arm 43 connected with theframework, as shown at 4st, said bracket arm 43 being of angularformation so as to contact with the top and end of the cylinder 1.

From the foregoing it will be apparent that T have provided a mixingmachine which will be of extremely simple construction and operation andhighly efficient and effective in use. It will further be seen thatshould the water pipe 33 be caused to burst from the water freezingtherein, the same may be readily replaced at a small cost, withouthaving to purchase a new hollow shaft for the cylinder, or otherinexpensive part of themachine, as has been heretofore necessary withthe former devices of this character.

lVhile I have shown the preferred embodiment of my invention, it will beapparent that minor changes in the details of construction may beresorted to within the scope of the appended claim without departingfrom the spirit of my invention.

Having thus described. my invention, what I claim is A device of thecharacter. described including a frame, a substantial horizontallydisposed cylinder having its ends open and rotatably supported by theframe, a bracket carried by the frame at a point above the rear end ofcylinder, the lower extremityof the bracket being angular and dependingbelow the upper portion thereof and adapted ito contact with the top andend of-the cylinjder, a supply pipe directed through the icylinderandhaving an end portion mounted in the bracket, means for rotating thecylinider, and means for supplying material within ithe cylinder. a Intestimony whereof I hereunto afiix my isignature in the presence of twowitnesses. ALVA A. MERRILL.

Witnesses:

Jnssm S. PERRY,

B. E. Ross.

Gopies of this patent may be obtained for five eentsl each, byaddressing the Commissioner of Patents,

Washington, 3).- G."

